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. 2011 Feb 16;20(8):672–679. doi: 10.1136/bmjqs.2010.045062

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© 2011, Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

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Flow chart of principal abdominal aortic aneurysm (AAA) monitoring trajectory. The enclosed box indicates the variability in the sequences of actions and activities (as indicated by symbols in the legend).